[xbox] graphical exception handler and exception dumper

Author: InvoxiPlayGames

.vscode/c_cpp_properties.json

@@ -9,6 +9,7 @@
             "defines": [
                 "_DEBUG",
                 "_XBOX",
+                "_PPC_",
                 "RB3E",
                 "RB3E_XBOX",
                 "RB3EDEBUG"

include/exceptions.h

@@ -0,0 +1,63 @@
+/*
+    RB3Enhanced - exceptions.h
+    Structures and function definitions for exception handling.
+*/
+
+#ifndef _EXCEPTIONS_H
+#define _EXCEPTIONS_H
+
+#include <stdint.h>
+
+#ifdef RB3E_XBOX
+#include <xtl.h>
+#endif
+
+#ifdef RB3E_WII
+typedef struct OSContext {
+    uint32_t gprs[32];  // at 0x0
+    uint32_t cr;        // at 0x80
+    uint32_t lr;        // at 0x84
+    uint32_t ctr;       // at 0x88
+    uint32_t xer;       // at 0x8C
+    double fprs[32];  // at 0x90
+    uint32_t fpscr_pad; // at 0x190
+    uint32_t fpscr;     // at 0x194
+    uint32_t srr0;      // at 0x198
+    uint32_t srr1;      // at 0x19C
+    uint16_t mode;      // at 0x1A0
+    uint16_t state;     // at 0x1A2
+    uint32_t gqrs[8];   // at 0x1A4
+    uint32_t psf_pad;   // at 0x1C4
+    double psfs[32];  // at 0x1C8
+} OSContext;
+typedef struct _rb3e_exception_wii {
+    uint32_t rb3e_base_address;
+    uint8_t error;
+    uint32_t dsisr;
+    uint32_t dar;
+    OSContext thread_ctx;
+} rb3e_exception_wii;
+#elif RB3E_XBOX
+#define EXCEPTION_CONTEXT_SIZE 560
+#endif
+
+// '3EXx' where x is W for Wumbo, X for Xbox and P for PS3
+#define EXCEPTIONPACK_HEADER_WII 0x33455857
+#define EXCEPTIONPACK_HEADER_XBOX 0x33455858
+#define EXCEPTIONPACK_HEADER_PS3 0x33455850
+
+typedef struct _rb3e_exception_header {
+    uint32_t magic;
+    uint32_t version;
+    char rb3e_buildtag[48];
+    char rb3e_commit[48];
+    uint16_t num_stackwalk;
+    uint16_t num_memchunks;
+} rb3e_exception_header;
+
+typedef struct _rb3e_exception_memchunk {
+    uint32_t address;
+    uint32_t length;
+} rb3e_exception_memchunk;
+
+#endif // _EXCEPTIONS_H

include/ports_xbox360.h

@@ -53,6 +53,7 @@
 #define PORT_MULTIPLAYER_CRASH 0x82ae6880        // branch to a function that can crash in online multiplayer
 #define PORT_MULTIPLAYER_FIX 0x8282b238          // the function that doesn't crash
 #define PORT_QUAZAL_BREAKPOINT 0x828410c0        // address to DbgBreakPoint in Quazal::Platform::Breakpoint
+#define PORT_MAINSEH 0x82272e60                  // address to __CxxFrameHandler above the main() function
 // function patch addresses
 #define PORT_SETDISKERROR 0x82516320                 // PlatformMgr::SetDiskError
 #define PORT_APP_RUN 0x82272e90                      // App::Run
@@ -148,6 +149,7 @@
 #define PORT_DATASETELEM 0x82760b38                  // DataSetElem
 #define PORT_DATAONELEM 0x8275ff50                   // DataOnElem
 #define PORT_DATANODEGETOBJ 0x8274b088               // DataNode::GetObj
+#define PORT_DXRND_SUSPEND 0x8273A370                // DxRnd::Suspend
 // instance addresses
 #define PORT_MODIFIERMGR_POINTER 0x82dfec08 // pointer to ModifierManager
 #define PORT_ROCKCENTRALGATEWAY 0x82cc8f60  // address of RockCentralGateway
@@ -164,6 +166,7 @@
 #define PORT_THEGAME 0x82e02128             // pointer to TheGame (you lost)
 #define PORT_OBJECTDIRMAINDIR 0x82e054b8    // ObjectDir::sMainDir
 #define PORT_MESH_GREV 0x82cc2638           // address of RndMesh::gRev
+#define PORT_DXRND 0x82e04b38               // address of TheDxRnd
 // import function stubs
 #define PORT_XEKEYSSETKEY_STUB 0x82c4c47c
 #define PORT_XEKEYSAESCBC_STUB 0x82c4c48c
@@ -180,6 +183,7 @@
 #define PORT_XAMUSERGETSIGNINSTATE 0x82c4bcfc
 #define PORT_XAMUSERCHECKPRIVILEGE 0x82c4bd1c
 #define PORT_XAMSHOWFRIENDSUI 0x8283d710
+#define PORT_XAMLOADERTERMINATETITLE 0x82c4bccc
 
 // define logging functions
 void DbgPrint(const char *s, ...);

include/rb3enhanced.h

@@ -23,6 +23,7 @@ int RB3E_FileExists(char *filename);
 int RB3E_OpenFile(char *filename, char readWrite);
 int RB3E_FileSize(int file);
 int RB3E_ReadFile(int file, int offset, void *buffer, int size);
+int RB3E_WriteFile(int file, int offset, void *buffer, int size);
 void RB3E_CloseFile(int file);
 int RB3E_CreateThread(void *address, void *arg, int stack_size);
 void RB3E_Sleep(int ms);

include/xbox360.h

@@ -28,6 +28,8 @@ DWORD XexGetProcedureAddress(HANDLE ModuleHandle, DWORD Ordinal, PVOID OutAddres
 int XeCryptSha(void *input_1, int input_1_size, void *input_2, int input_2_size, void *input_3, int input_3_size, void *output, int output_size);
 int XeCryptHmacSha(void *key, int key_size, void *input_1, int input_1_size, void *input_2, int input_2_size, void *input_3, int input_3_size, void *output, int output_size);
 int XeKeysConsolePrivateKeySign(unsigned char hash[0x14], unsigned char output_cert_sig[0x228]);
+// memory management
+int MmIsAddressValid(DWORD address);
 
 // structure for xnet
 typedef struct _XnpRouteEntry_t

source/_functions.c

@@ -62,6 +62,7 @@ RB3E_STUB(MemNumHeaps)
 RB3E_STUB(MemAlloc)
 RB3E_STUB(MemFree)
 RB3E_STUB(FileIsDLC)
+RB3E_STUB(DxRndSuspend)
 #ifndef RB3E_XBOX
 RB3E_STUB(DataRegisterFunc) // DataRegisterFunc is inlined on 360
 #endif

source/wii_exceptions.c

@@ -11,6 +11,7 @@
 #include <rvl/vi.h>
 #include <rvl/ipc.h>
 #include <rvl/cache.h>
+#include "exceptions.h"
 #include "version.h"
 #include "ppcasm.h"
 #include "ports.h"
@@ -431,23 +432,6 @@ static unsigned char dolphin_osfatal_font[] = {
 typedef struct _GXColor {
     uint8_t r, g, b, a;
 } GXColor;
-typedef struct OSContext {
-    uint32_t gprs[32];  // at 0x0
-    uint32_t cr;        // at 0x80
-    uint32_t lr;        // at 0x84
-    uint32_t ctr;       // at 0x88
-    uint32_t xer;       // at 0x8C
-    double fprs[32];  // at 0x90
-    uint32_t fpscr_pad; // at 0x190
-    uint32_t fpscr;     // at 0x194
-    uint32_t srr0;      // at 0x198
-    uint32_t srr1;      // at 0x19C
-    uint16_t mode;      // at 0x1A0
-    uint16_t state;     // at 0x1A2
-    uint32_t gqrs[8];   // at 0x1A4
-    uint32_t psf_pad;   // at 0x1C4
-    double psfs[32];  // at 0x1C8
-} OSContext;
 typedef enum _OSErrorType {
     OS_ERR_SYSTEM_RESET,
     OS_ERR_MACHINE_CHECK,

source/xbox360.c

@@ -10,6 +10,7 @@
 #include "ports.h"
 #include "rb3enhanced.h"
 #include "xbox360.h"
+#include "version.h"
 
 static int HasRunDetection = 0;
 static int DetectionResult = 0;
@@ -132,11 +133,15 @@ static void EnableSockpatch()
     }
 }
 
+// defined in xbox360_exceptions.c
+int RB3E_ExceptionHandler(EXCEPTION_RECORD *ExceptionRecord, void *EstablisherFrame, CONTEXT *ContextRecord, struct _DISPATCHER_CONTEXT *DispatcherContext);
+
 BOOL APIENTRY DllMain(HANDLE hInstDLL, DWORD reason, LPVOID lpReserved)
 {
     if (reason == DLL_PROCESS_ATTACH)
     {
-        RB3E_DEBUG("DLL has been loaded");
+        RB3E_DEBUG("DLL has been loaded", NULL);
+        POKE_32(PORT_MAINSEH, (DWORD)RB3E_ExceptionHandler);
         // Replace App::Run with App::RunWithoutDebugging
         POKE_BL(PORT_APP_RUN, PORT_APP_RUNNODEBUG);
         // Apply our hook